Bag



FIG. 1 is a perspective view of a bag;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof, the left side elevation view being a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a rear elevation view thereof.

The broken lines shown in the drawings depict portions of the bag that form no part of the claimed design. 

CLAIM The ornamental design for a bag, as shown and described. 